oj.uz

Submission #585716

# Submission time Handle Problem Language Result Execution time Memory
585716 2022-06-29T09:05:29 Z InternetPerson10 Ancient Books (IOI17_books) C++17
50 / 100
 1072 ms 227196 KB 
#include "books.h"
#include <bits/stdc++.h>
typedef long long ll;

using namespace std;

vector<vector<int>> adj;
vector<int> dist;

long long minimum_walk(vector<int> p, int s) {
    ll tot = 0;
    int n = p.size();
    vector<bool> taken(n, false);
    int g = n;
    adj.resize(n);
    for(int i = 1; i < n; i++) {
        adj[i].push_back(i-1);
        adj[i-1].push_back(i);
    }
    for(int i = 0; i < n; i++) {
        if(!taken[i]) {
            adj.push_back(vector<int>());
            int x = i;
            int l = i, r = i;
            while(!taken[x]) {
                taken[x] = true;
                tot += abs(x - p[x]);
                x = p[x];
                l = min(l, x);
                r = max(r, x);
                adj[x].push_back(g);
            }
            for(int j = l; j <= r; j++) {
                adj[g].push_back(j);
            }
            g++;
        }
    }
    dist.resize(g, 1e9 + 7);
    priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;
    pq.push({0, s + 1});
    while(pq.size()) {
        auto pa = pq.top();
        pq.pop();
        int len = pa.first, x = abs(pa.second) - 1;
        if(len > dist[x]) continue;
        if(x < n) {
            if(pa.second < 0) {
                tot += 2;
            }
        }
        for(int ch : adj[x]) {
            int goLength;
            if(max(ch, x) < n) {
                goLength = len + 1;
            }
            else {
                goLength = len;
            }
            if(dist[ch] <= goLength) continue;
            dist[ch] = goLength;
            if(goLength == len + 1) pq.push({goLength, -ch-1});
            else pq.push({goLength, ch+1});
        }
    }
    for(int i = 0; i < n; i++) {
        if(p[i] == i && i != s) tot -= 2;
        else break;
    }
    for(int i = n-1; i >= 0; i--) {
        if(p[i] == i && i != s) tot -= 2;
        else break;
    }
	return max(tot, 0LL);
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 300 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 300 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 304 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 300 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 304 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1020 ms 110492 KB Output is correct
31 Correct 1072 ms 125000 KB Output is correct
32 Correct 319 ms 128608 KB Output is correct
33 Correct 348 ms 110912 KB Output is correct
34 Correct 341 ms 110968 KB Output is correct
35 Correct 311 ms 103544 KB Output is correct
36 Correct 344 ms 91812 KB Output is correct
37 Correct 384 ms 94456 KB Output is correct
38 Correct 479 ms 102220 KB Output is correct
39 Correct 460 ms 102184 KB Output is correct
40 Correct 480 ms 105504 KB Output is correct
41 Correct 745 ms 116108 KB Output is correct
42 Correct 694 ms 120972 KB Output is correct
43 Correct 797 ms 227196 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 340 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3864'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 0 ms 300 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 304 KB Output is correct
26 Correct 2 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1020 ms 110492 KB Output is correct
31 Correct 1072 ms 125000 KB Output is correct
32 Correct 319 ms 128608 KB Output is correct
33 Correct 348 ms 110912 KB Output is correct
34 Correct 341 ms 110968 KB Output is correct
35 Correct 311 ms 103544 KB Output is correct
36 Correct 344 ms 91812 KB Output is correct
37 Correct 384 ms 94456 KB Output is correct
38 Correct 479 ms 102220 KB Output is correct
39 Correct 460 ms 102184 KB Output is correct
40 Correct 480 ms 105504 KB Output is correct
41 Correct 745 ms 116108 KB Output is correct
42 Correct 694 ms 120972 KB Output is correct
43 Correct 797 ms 227196 KB Output is correct
44 Incorrect 2 ms 340 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3864'
45 Halted 0 ms 0 KB -